Library of Congress. Copyright Office. (1937). Fortieth annual report of the register of copyrights, for the fiscal year ending June 30, 1937. [s.n.].
Chicago Style (17th ed.) CitationLibrary of Congress. Copyright Office. Fortieth Annual Report of the Register of Copyrights, for the Fiscal Year Ending June 30, 1937. [Washington]: [s.n.], 1937.
MLA (9th ed.) CitationLibrary of Congress. Copyright Office. Fortieth Annual Report of the Register of Copyrights, for the Fiscal Year Ending June 30, 1937. [s.n.], 1937.
Warning: These citations may not always be 100% accurate.